Raju Gurung got 16 marks out of 20 full marks in math. Find marks in percent

Anyone know? will mark brainliest if you're correct!

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15